N+PVD technology forms a high-strength transition layer on the zinc alloy surface, significantly improving the adhesion between the gold plating layer and the substrate. Even after rigorous adhesion tests, the gold layer remains firmly attached and is suitable for frequently used products such as handbag buckles and jewelry accessories.

Traditional zinc alloy gold-plated products are prone to black spots, peeling, or oxidation and discoloration in humid or sweaty environments. N+PVD technology, through its dense vacuum coating structure, significantly improves corrosion resistance, ensuring that products maintain a bright and new golden luster even after long-term use.

Compared to traditional electroplating, which requires a large amount of precious metal materials and complex wastewater treatment costs, N+PVD technology achieves significant cost savings through more precise coating control and higher material utilization. At the same time, the vacuum process is more environmentally friendly, aligning with modern green manufacturing trends.